osx - sed command with -i option failing on Mac, but works on Linux -

i've used following sed command search/replace text in linux:

sed -i 's/old_link/new_link/g' *

however, when try on mac os x, get:

"command c expects \ followed text"

i thought mac runs normal bash shell. what's up?

edit:

according @high performance, due mac sed being of different (bsd) flavor, question therefore how replicate command in bsd sed?

edit:

here actual example causes this:

sed -i 's/hello/gbye/g' *

if use -i option need provide extension backups.

if have:

file1.txt file2.cfg

the command:

sed -i '.original' 's/old_link/new_link/g' *

create 2 backup files like:

file1.txt.original file2.cfg.original

there no portable way avoid making backup files because impossible find mix of sed commands works on cases:

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